Authors / CoAuthors
Borissova, I. | Southby, C. | Bernardel, G. | Totterdell, J. | Morris, R. | Owens, R.
Abstract
In 2014-15 Geoscience Australia acquired 3,300 km of deep 2D seismic data over the northern part of the Houtman Sub-basin (Perth Basin). Prior to this survey, this area had a very sparse coverage of 2D seismic data with 50-70 km line spacing in the north and an industry grid with 20 km line spacing in the south. Initial interpretation of the available data has shown that the structural style, major sequences, and potential source rocks in this area are similar to those in the southern Houtman and Abrolhos sub-basins. The major difference between these depocentres, however, is in the volume and distribution of volcanic and intrusive igneous rocks. The northern part of the Houtman Sub-basin is adjacent to the Wallaby Plateau Large Igneous Province (LIP). The Wallaby Plateau and the Wallaby Saddle, which borders the western flank of the Houtman Sub-basin, had active volcanism from the Valanginian to at least the end of the Barremian. Volcanic successions significantly reduce the quality of seismic imaging at depth, making it difficult to ascertain the underlying thickness, geometry and structure of the sedimentary basin. The new 2D seismic dataset across the northern Houtman Sub-basin provides an opportunity for improved mapping of the structure and stratigraphy of the pre-breakup succession, assessment of petroleum prospectivity, and examination of the role of volcanism in the thermal history of this frontier basin.
Product Type
document
eCat Id
102942
Contact for the resource
Author
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- Houtman Sub-basin
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- Perth Basin
- Australian and New Zealand Standard Research Classification: Fields of Research
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- Petroleum and Coal Geology
- ANZLIC Geographic Extent Name Register
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- SH49 HOUTMAN ABROLHOS
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- Published_External
Publication Date
2016-11-16T00:00:00
Creation Date
2016-11-16T00:00:00
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notPlanned
Topic Category
geoscientificInformation
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Not applicable
Parent Information
Extents
[-32.15468221325649, -23.299373116394577, 105.75390624999997, 116.12499999999999]
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